<template>
  <!-- eslint-disable -->
  <div>
   <!-- 面包屑导航 -->
   <el-breadcrumb separator-class="el-icon-arrow-right">
     <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
     <el-breadcrumb-item>商品管理</el-breadcrumb-item>
     <el-breadcrumb-item>商品列表</el-breadcrumb-item>
   </el-breadcrumb>
   <!-- 卡片视图区域 -->
   <el-card>
     <!-- 下面这个gutter指定间距 -->
     <el-row :gutter="20">
       <el-col :span="8">
           <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable>
             <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
           </el-input>
       </el-col>
       <el-col :span="4">
         <el-button type="primary" @click="goAddpage">
           添加商品
         </el-button>
       </el-col>
     </el-row>
     <!-- table表格区域 -->
     <el-table :data="goodslist" border stripe>
       <el-table-column type="index"></el-table-column>
       <el-table-column label="商品名称" prop="goods_name"></el-table-column>
       <el-table-column label="商品价格" prop="goods_price" width="90px"></el-table-column>
       <el-table-column label="商品重量" prop="goods_weight" width="80px"></el-table-column>
       <el-table-column label="创建时间" prop="add_time" width="170px">
         <template v-slot="scope">{{scope.row.add_time | dateFormat}}</template>
       </el-table-column>
       <el-table-column label="操作" width="150px">
         <template v-slot="scope">
           <el-button type="primary" icon="el-icon-edit"></el-button>
           <el-button type="danger" icon="el-icon-delete" @click="removeById(scope.row.goods_id)"></el-button>
         </template>
       </el-table-column>
     </el-table>
     <!-- 这是分页区域 -->
      <el-pagination
           @size-change="handleSizeChange"
           @current-change="handleCurrentChange"
           :current-page="queryInfo.pagenum"
           :page-sizes="[5, 10, 30, 40]"
           :page-size="queryInfo.pagesize"
           layout="total, sizes, prev, pager, next, jumper"
           :total="total" background>
         </el-pagination>
   </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodslist: [],
      // 总数据条数
      total: 0
    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 这是根据分页获取对应的商品列表
    async getGoodsList() {
      // get都需要params
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败!')
      }
      this.$message.success('获取商品列表成功!')
      console.log(res.data)
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    async removeById(id) {
      const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消删除!')
      }
      const { data: res } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除失败！')
      }
      this.$message.success('删除商品成功！')
      this.getGoodsList()
    },
    // 路由导航
    goAddpage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
</style>
